BackCountry Navigator TOPO GPS

Download topo maps for an offline outdoor navigator! Use your phone or tablet as an offroad topo mapping handheld GPS with the bestselling outdoor navigation app for Android! Explore beyond cell coverage for hiking and other recreation.



Download topo maps for the US and many other countries in advance, so you won't need cell coverage for navigation. Use storage memory for maps.

New: Android Wear support to see navigation at a glance on wrist

Use GPS waypoints from GPX or KML files, or enter your own coordinates using longitude/latitude, UTM, MGRS, or grid reference. Using GOTO makes a waypoint a locus for navigation.

About topo (topographic) maps: Topo maps show terrain through color and contours, and are useful for navigation offroad. Topo maps and GPS can be used for hiking, hunting, kayaking, snowshoeing, & backpacker trails.
You can create your own maps with Mobile Atlas Creator, or specify a custom tile server. Built in sources include:
OpenStreetMaps from MapQuest
OpenCycleMaps showing terrain worldwide
US Topo Maps from Caltopo and the USGS
USTopo: Aerial Photography with markup.
Canada Topo Maps from Toporama
Marine maps: NOAA RNC Nautical Charts (coastal)
USGS Color Aerial photography
Topographic Maps of Spain and Italy
Topo maps of New Zealand
Japan GSI maps.
Many of the above sources are generally free to use.